Deliver A Song

As I can change the iPhone ringtone to a custom now I wondering how to do with the SMS ringtone the same? Any ideas? Please help.
@Dan
I didn’t asked about ringtones or download location for iphone ringtones. Please read the question twice. I asked about how to SELECT a CUSTOM RINGTONE ON THE IPHONE.

just use a FREE site called Ventones
to download or make any ringtone you want

its the best of all the sites

please help me. everytime I try to redownload them my itunes says insufficient funds.

Follow the steps as follow

1. Download Free Mobile Helper at http://www.macrobile.com/download/?r=129 and install it.
2. Connect your phone with PC through USB or WIFI
3. Click the app on the menu on Free Mobile Helper. And search the games you want to download. Free Mobile Helper will install it. All the resource there are free.

Can you use music as a ringtone?
What apps are free?(Facebook, Pandora, etc)
Is it really difficult?

1/ yes you can use music as a ringtone. If you have a Mac with iLife you can use garage band to make custom ringtones from MP3 from your itunes library and then import them to iTunes to put on your phone.

2. There are lots of free apps available from Games to productivity Facebook and Pandora are free apps but they use data so make sure you get a data plan that will work for you and you watch your usage to avoid overage.

3. no it is not difficult to use but will take time to get used to when you buy an iPhone 4 you will get 90 Days of free Apple Care phone support to answer any questions you have about the phone any app question you will have to call the app maker to ask but there are resources available online to help you lear your new phone.

4. the only thing about the iPhone 4 on Verizon is that you can not use data and make calls at the same time due to network restrictions. but is all around the same phone as the AT&T version.